Few questions

Hi,
I recently installed the latest version of ISPConfig (3.0.1.6) and I have some questions:
Can I make changes to the ISPConfig:
When I add a new Site to add it to the DNS using template?
Also when I add a subdomain, it's added as a alias of domain. Can it be added as other folder to do domain's root folder? Can it be also added as A record to the?
Where is the default template for the new sites?
Can my company make a template for the ISPConfig?

You can change anything in ISPConfig what you want, its open source software. For details on ispconfig development, take a look at the threads in the developre forum, you will find there also a link to the developer documentation.